Reeling of artificial threads



Jain.27,1931. T. MADLUNG- 1,790,063

REELING OF ARTIFICIAL THREADS Filed Aug. 51, 1928 Patented Jan. 27, 1931 UNITED STATES PATENT ol-"rlcs Y TOTILA MADLUNG; -01 DESSAU IN AIN'HALT, GERMANY, ASSIGNOR TO I. G. FARBEN- 'INDUSTRIE AKTIENGESELLSCHAFT, OF FRANKFORT-ON-THE-MAIN, GERMANY, A

CORPORATION OF GERMANY REELING OF ARTIFICIAL THREADS Application filed August 31, 1928, Serial No. 303,295, and in Germany September 15, 1927.

The present invention relates to improvements in the reeling of artificial threads from a centrifugal cake and to devices suitable thereto.

In spinning artificial fibers in a centrifuge box, the thread collects on the inner surface of the box and forms the so-called centrifugal cake. This cake is reeled oil to produce the hanks of thread. During the reeling operation the thread remains remarkably sensitive so that the quality of the product depends very much on the smooth and uninterrupted running of the reeling operation. On this account various devices have been constructed with a view to facilitating and improving the reeling operation. All such devices are for thepurpose of ensuring an uninterrupted flow of the thread from the beginning to the end of the centrifugal cake.- For example, the cake has been mounted on a wooden or metal cone, or there have been inserted in the cake circular springs to act as a brake.

According to the present invention the reeling of the thread is conducted easily and smoothly by mounting the centrifugal cake on a body of rubber or other elastic material, which is then inflated. The inflated body bears against the inner surface of the cake and acts very advantageously as the support which the cake needs in order that the thread may be reeled-smoothly.

By using a device of this kind, the cake can be reeled oif from beginning to end quite uniformly and the waste in the process is reduced to a minimum. ,In particular, the device has the advantage that any friction or damage to the cake at starting is avoided. Moreover, the rubber body being inflated the pressure on the cake in every direction is uniform and gentle and prevents collapse of the cake without pushing any part of the latter against its support. The cake can be carried free by the body, that is to say its lower edge need not come in contact with any surface, although it can be allowed to rest on a base plate, ifdesired, with which the body may be provided.

In the attached drawing Ihave illustrated several preferred forms of the invention; it

being understood that no limitations to the precise structural details disclosed are necessary, but changes, alterations, and modifications within the scope of the claims may be resorted to.

I Figures 1 to 4 show cross sections of my new supports bearing a fiber cake.

In the several figures the same reference characters are used throughout to designate equivalent parts. A represents an elastic bag. B is the centrifugal cakemounted on the bag. 0 is a connecting tube for the inflating pump, said tube is attached to the base plate E. It may be provided with a valve D. The form of the bag can be varied within wide limits and the base plate E may be of various form. The air-tight joint between the base plate may be made in any suitable manner. In Figure 1 the ba A covers completely the outside of the ase plate E. In Figure 2 a ring F is arranged tight attached to the base plate E by placing its lower ends A continuously between the base plate E and ring F and pressingthe same against the base plate with screws G. In Figure 3 grooves E are arranged in the lateral surface of the plate E, the bag A is placed over said lateral surface and air-tight attached to this surface by pressing it into the grooves E by means of a wire H or the like. In Figure 4 the elastic bag A is placed over the lateral surface of the base plate and pressed thereupon by means of a ring I.

What I claim is:

1. As a support fora centrifugal cake of artificial threads in the reeling process, a base plate and an elastic bag which is air tight attached to said base plate, said base plate being provided with a tube which conigects the outside with the interior of said 5. As a support for a centrifugal cake of artificial threads in the reeling process, base plate and an elastic rubber bag which is air tight attached to said base plate, said base plate being provided with a tube which connects the outside with the interior of said bag.

3. As a support for a centrifugal cake of upon the base plate E and the bag A is airartificial threads in the reeling process, a base plate which is provided with grooves in its lateral surface, an elastic bag which is placed over said lateral surface and air-tight attached thereto by pressing the bag into the grooves by means of wire, said base plate being provided with a tube which connects the outside with the interior of the bag.

4. As a support for a centrifugal cake of artificial threads in the reeling process, a base plate which is provided with grooves in its lateral surface, an elastic rubber bag which is placed over said lateral surface and air-tight attached thereto by pressing the bag into the grooves by means of wire, said base plate being provided with a tube which gonnects the outside with the interior of the %n testimony whereof, I affix my signature.

TOTI'LA MADLUNG. 

